726988 has 12 divisors (see below), whose sum is σ = 1347192. Its totient is φ = 342080.

The previous prime is 726983. The next prime is 726989. The reversal of 726988 is 889627.

It is a self number, because there is not a number n which added to its sum of digits gives 726988.

It is not an unprimeable number, because it can be changed into a prime (726983) by changing a digit.

726988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5278 + ... + 5413.

It is an arithmetic number, because the mean of its divisors is an integer number (112266).

2⁷²⁶⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

726988 is a deficient number, since it is larger than the sum of its proper divisors (620204).

726988 is a wasteful number, since it uses less digits than its factorization.

726988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10712 (or 10710 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 726988 is about 852.6359129195. The cubic root of 726988 is about 89.9171253561.

The spelling of 726988 in words is "seven hundred twenty-six thousand, nine hundred eighty-eight".